SL362 Energy transfer by radiation school teaching equipment Hydrodynamics Experiment Apparatus Equipment
1. Description
Thermal radiation is a non-material-bound energy transport by means of electromagnetic oscillations in a certain wavelength range. Any body with a temperature above zero Kelvin emits radiation known as thermal radiation. Thermal radiation includes UV radiation, light radiation and infrared radiation. Radiation covers the wavelength range visible to the human eye.
The SL 362 experimental unit contains two radiation sources: a heat radiator and a light emitter. Thermal radiation is detected by means of a thermopile. Light radiation is recorded by means of a luxmeter with photodiode. Colours can be sSTup between the emitter and the detector. All components are mounted on an optical bench. The distance between the optical elements can be read from a scale along the optical bench.
Luxmeter, thermopile and light emitter can be rotated to study how the angle of incidence affects the radiation intensity. The angles are read off the angular scale.
The optical elements are used to investigate the reflection, absorption and transmission of different materials at different wavelengths and temperatures. The radiant power of both emitters can be adjusted. The aim of the experiments is to check optical laws: eg Kirchhoff's law of radiation, the Stefan-Boltzmann law, Lambert's distance and direction law.
2. Technical details
Specification
Thermal radiator and thermopile for the investigation of thermal radiation
Light source and luxmeter for the investigation of illuminance
Absorption plate and reflection plate with thermocouples for the investigation of Kirchhoff’s laws
Adjustable radiant power of thermal radiator and light source
3 colour filters with holder (red, green, infrared), slit diaphragm
Luxmeter for measuring illuminance
Thermocouple for measuring the temperature
Thermopile for measuring radiant power
Technical data
Thermal radiator
Material: AlMg3, black anodized
Output: 400W at 230V, 340W at 120V
Max. achievable temperature: 300°C
Radiant area, LxW: 200x200mm
Light source
Halogen lamp
Output: 42W
Luminous flux: 630lm
Colour temperature: 2900K
Range of rotation on both sides: 0... 90°
Alternative illuminated surface
Diffusing lens, LxW: 193x193mm or
Orifice plate, Ø 25mm
Optical elements to insert
Slit diaphragm
3 colour filters: red, green, infrared
Absorption plate and reflection plate with thermocouple type K, matt black lacquered
Measuring ranges
Illuminance: 0...1000 lux
Temperature: 2x 0...200°C
Radiant power: 0...1000W/m2
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase
UL/CSA optional
Required for operation
PC with Windows recommended
